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Finding the Fourth Proportional to 84,588.17, 126,135.50 and 83,828.93

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Solution

The fourth proportional to 84,588.17, 126,135.50 and 83,828.93 is: 125,003.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,588.17 : 126,135.50 = 83,828.93 : x
  2. Step 2: Convert to fraction form
    84,588.17/126,135.50 = 83,828.93/x
  3. Step 3: Cross multiply
    84,588.17x = 126,135.50 × 83,828.93
  4. Step 4: Simplify right side
    84,588.17x = 10,573,802,950.19
  5. Step 5: Solve for x
    x = 10,573,802,950.19/84,588.17
  6. Step 6: Final answer
    x = 125,003.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.